Joystick



FIG. 1 is a top, front and left side perspective view of the joystick embodying my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a left side view thereof. 

The ornamental design for joystick, as shown and described. 